Antioxidant 168
Hosea Chem® has been supplying Antioxidant 168 (CAS 31570-04-4) ( Tns-(2.4-di-tert-butyl)-phosphite)with high quality and competitive price for many years..... Send Inquiry
Product Description
Antioxidant 168
Specification of Product
Product Name : Antioxidant 168
Chemical name : Tns-(2.4-di-tert-butyl)-phosphite
Grade : First Grade
Molecular formula : C42H63O3P
Molecular weight : 646.922
CAS No. : 31570-04-4
Packing : 25Kg/Bag
Storage : This product should be stored in a dry, dark, dedicated indoor warehouse to prevent moisture.
During storage, transportation, loading and unloading, protect this product from rain and direct sunlight. Ensure it is dry and the packaging is protected from damage or contamination by other items. Do not mix or store it with toxic or hazardous substances. Do not store it at high temperatures.
This product has a shelf life of 12 months from the date of production. Users are advised not to add excessive amounts or use it inappropriately.
Characteristics and Application
This product is an organophosphite antioxidant with low volatility and excellent hydrolysis resistance. It can protect polymers susceptible to oxidation during processing (mixing, pelletizing, molding, and recycling). It works synergistically with other antioxidants and is suitable for use in polyolefins and olefin copolymers, such as polyethylene (e.g., HDPE, LLDPE), polypropylene, polybutylene, and ethylene-vinyl acetate copolymers; polycarbonates, polyamides, polyesters, and styrene homopolymers and copolymers; adhesives (natural and synthetic adhesive resins); elastomers such as BR, SEBS, SBS, and other organic materials.
Technical indicators
Appearance: White powder or granules
Melting point, /℃: 183.0 - 187.0
Purity, w/ %: ≥ 99.0
Solubility (2g/20ml, toluene): Clear
Volatile, w/%: ≤ 0.30
2,4-di-tert-butylphenol Content, w/%: ≤ 0.20
Hydrolysis resistance (95°C water, 5h): Pass
Acid value, mgKOH/g: ≤ 0.30
Transmittance, w/%: ≥ 98 (500nm) ≥ 98 (425nm)